Pursuing Simple and Low-cost Operation for Sludge Reduction via a Self-Oxidized Reduction Process in a Field-Scale Sewage Treatment Plant
Ryoko Sekifuji, Satoru Takinami, Yukinori Harada, Masashi Watanabe, Masafumi Tateda
Journal of Scientific Research and Reports · pp. 1–8 · Published 5 Mar 2018
10.9734/JSRR/2018/40146Abstract
Aims: A self-oxidized sludge reduction process was installed in a municipal sewage treatment plant at full scale in order to verify the efficiency of the process. Study Design: A full-scale (100 m3) self-oxidized sludge reduction tank was constructed in a municipal sewage treatment plant and was operated for collecting data. Place and Duration of Study: The sewage treatment plant was located in a city of Toyama Prefecture, Japan. The field test was conducted from FY 2011 to 2015. Methodology: By observing BOD, SS, and CODMN and controlling them to conform to industrial wastewater discharge standards, the cost reduction of waste sludge disposal resulting from sludge mass reduction via the self-oxidized process was evaluated. Results: In this study, the operation cost for a local small government in charge of the plant was reduced by more than 50,000 USD per year. Conclusions: The self-oxidized method can be an alternative sludge reduction method.
Cited by 1
RYOKO SEKIFUJI, CHIEU VAN LE, YOSHIKI TAKABE · Japanese Journal of Water Treatment Biology · 2023
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